Results 31 to 40 of about 1,259,198 (268)

Acoustic characterization of crack damage evolution in sandstone deformed under conventional and true triaxial loading [PDF]

open access: yes, 2017
We thank the Associate Editor, Michelle Cooke, and the reviewers, Ze'ev Reches and Yves Guéguen, for useful comments which helped to improve the manuscript. We thank J.G.
Browning, J.   +5 more
core   +2 more sources

Use of elastic stability analysis to explain the stress-dependent nature of soil strength [PDF]

open access: yes, 2015
The peak and critical state strengths of sands are linearly related to the stress level, just as the frictional resistance to sliding along an interface is related to the normal force. The analogy with frictional sliding has led to the use of a ‘friction
Hanley, KJ   +3 more
core   +3 more sources

Experimental Study on Damage Characteristics of Coal Samples under True Triaxial Loading and Dynamic Unloading

open access: yesLithosphere, 2022
Coal bursts are one of the formidable hazards in underground coal mines, yet it is still not fully explored due to the complex stress environment that exists during mining.
Anye Cao   +5 more
doaj   +1 more source

Laboratory observations of permeability enhancement by fluid pressure oscillation of in situ fractured rock [PDF]

open access: yes, 2011
We report on laboratory experiments designed to investigate the influence of pore pressure oscillations on the effective permeability of fractured rock.
Brodsky, Emily E.   +3 more
core   +4 more sources

Constitutive modeling of steel-polypropylene hybrid fiber reinforced concrete using a non-associated plasticity and its numerical implementation [PDF]

open access: yes, 2014
This paper presents a non-associated plasticity-based constitutive model for hybrid steel–polypropylene fiber reinforced concrete (HFRC) materials in an attempt to characterize the stress–strain responses under multiaxial loading scenarios. Together with
Chi, Y, Xu, L, Yu, H-S
core   +1 more source

New method for true-triaxial rock testing [PDF]

open access: yesInternational Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1997
Two new and related true-triaxial apparatus are described that make use of conventional triaxial pressure vessels in combination with specially configured, high-pressure hydraulic jacks inside these vessels. The development combines advantages not found in existing facilities, including a compact design, pore-pressure and flow-through capabilities, the
Wawersik, W. R.   +3 more
openaire   +1 more source

Strength and deformation properties of frozen sand under a true triaxial stress condition

open access: yesSoils and Foundations, 2022
In recent years, the mechanical properties of frozen soils under complex stress states have attracted significant attention; however, limited by the test apparatus, true triaxial tests on frozen soils have rarely been conducted. To study the strength and
Kun Huang   +3 more
doaj   +1 more source

An MCMC Fitting Method for Triaxial Dark Matter Haloes [PDF]

open access: yes, 2008
Measuring the 3D distribution of mass on galaxy cluster scales is a crucial test of the LCDM model, providing constraints on the behaviour of dark matter. Recent work investigating mass distributions of individual galaxy clusters (e.g.
Bahcall   +36 more
core   +1 more source

True triaxial tests on transversely isotropic unsaturated loess

open access: yesYantu gongcheng xuebao, 2022
In order to study the mechanical properties of transversely isotropic unsaturated remolded loess under complex stress paths, two groups of 15 tests are carried out using the true triaxial apparatus.
GUO Nan 1, CHEN Zheng-han 1, 2, YANG Xiao-hui 1, GAO Deng-hui 3
doaj   +1 more source

Railway ballast anisotropy testing via true triaxial apparatus [PDF]

open access: yesTransportation Geotechnics, 2020
This paper aims to demonstrate the anisotropic behaviour of railway ballast via true-triaxial tests. To do so, a novel, large-scale, true-triaxial testing apparatus (GeoTT) is designed and constructed. It consists of six hydraulic actuators, designed to apply a distributed stress to large granular cubic test specimens with dimensions: 500 mm × 500 m ...
Yu ZL   +4 more
openaire   +3 more sources

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